BIOC405 EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
Which of the following statements is generally TRUE?
1. Eukaryotic cells are larger and less compartmentalized than prokaryotic cells
2. Eukaryotic cells are smaller and more compartmentalized than prokaryotic
cells
3. eukaryotic cells are larger and more compartmentalized than prokaryotic cells
4.eukaryotic cells are smaller and less compartmentalized than prokaryotic cells
3. eukaryotic cells are larger and more compartmentalized than prokaryotic cells
Which of the following is NOT an example of a biopolymer?
1. phosphatidyl serine
2. starch
3. myoglobin
4. DNA
1. phosphatidyl serine
Which of the following organelles is NOT present in animal cells?
1. lysosome
2. mitochondrion
3. nucleus
4. chloroplast
4. chloroplast
,Which of the following is always TRUE about a reaction that happens
spontaneously?
1. deltaG is negative
2. deltaH is negative
3. deltaS is positive
4. deltaH is negative and deltaS is positive
1. deltaG is negative
As ice melts into water, how does the entropy and enthalpy change?
1. entropy increases, enthalpy decrease
2. entropy increases, enthalpy increases
3. entropy decreases, enthalpy increases
4. entropy decreases, enthalpy decreases
2. entropy increases, enthalpy increases
Which of the following statements is TRUE about open systems?
1. only reactions with positive deltaS are spontaneous
2. a reaction with deltaG= -20 kJ/mol will always proceed faster than one with
deltaG= -10 kJ/mol
3. reactions with a negative deltaS may be spontaneous
4. a reaction that occurs spontaneously at T= 273 K will occur spontaneously at
T= 300 K
3. reactions with a negative deltaS may be spontaneous
Which of the following do you expect to have highest entropy?
1. ammonia (NH3) gas
,2. liquid ammonia
3. solid ammonia
4. all of the above have the same entropy
1. ammonia (NH3) gas
3 domains of life
1. eukaryoties
2. archaea
3. bacteria
2+3 are called prokaryotes
bacterial cells
are simpler and smaller than eukaryotic cells, they are generally not compartmentalized
they are still quite complex
a eukaryotic cell is highly organized- and compartmentalized. the different
compartments are called organelles: (plant cell)
mitochondrion, chloroplast, nucleus
nucleus
contains chromosomal DNA
mitochondrion
energy generation
chloroplast
photosynthesis
eukaryotic animal cell
, 1. nucleus
2. mitochondrion
3. lysosome
organelles differ in major ways from the cytoplasm
1. protein content
2. DNA & RNA content
3. cofactors
4. pH
(lysosome has a lower pH compared to other organelles)
malaria parasite; a unicellular eukaryote with many highly specialized organelles
miconeme: provides proteins for red blood cell entry
rhoptry: provides proteins for red blood cell entry
* need to know these proteins are essential for host cell invasion by malaria parasite
lipid critical for biomembrane formation
have a polar head and hydrocarbon tail
they spontaneously make membrane bilayer when placed in water
lipids for biological membranes
oligasaccharide: on outer surfaces of membranes
membranes are crucial for surrounding compartments like the cell itself, mitochondrion,
chloroplasts, nuclei, lysosomes
comparmentation
COMPLETE SOLUTIONS VERIFIED
Which of the following statements is generally TRUE?
1. Eukaryotic cells are larger and less compartmentalized than prokaryotic cells
2. Eukaryotic cells are smaller and more compartmentalized than prokaryotic
cells
3. eukaryotic cells are larger and more compartmentalized than prokaryotic cells
4.eukaryotic cells are smaller and less compartmentalized than prokaryotic cells
3. eukaryotic cells are larger and more compartmentalized than prokaryotic cells
Which of the following is NOT an example of a biopolymer?
1. phosphatidyl serine
2. starch
3. myoglobin
4. DNA
1. phosphatidyl serine
Which of the following organelles is NOT present in animal cells?
1. lysosome
2. mitochondrion
3. nucleus
4. chloroplast
4. chloroplast
,Which of the following is always TRUE about a reaction that happens
spontaneously?
1. deltaG is negative
2. deltaH is negative
3. deltaS is positive
4. deltaH is negative and deltaS is positive
1. deltaG is negative
As ice melts into water, how does the entropy and enthalpy change?
1. entropy increases, enthalpy decrease
2. entropy increases, enthalpy increases
3. entropy decreases, enthalpy increases
4. entropy decreases, enthalpy decreases
2. entropy increases, enthalpy increases
Which of the following statements is TRUE about open systems?
1. only reactions with positive deltaS are spontaneous
2. a reaction with deltaG= -20 kJ/mol will always proceed faster than one with
deltaG= -10 kJ/mol
3. reactions with a negative deltaS may be spontaneous
4. a reaction that occurs spontaneously at T= 273 K will occur spontaneously at
T= 300 K
3. reactions with a negative deltaS may be spontaneous
Which of the following do you expect to have highest entropy?
1. ammonia (NH3) gas
,2. liquid ammonia
3. solid ammonia
4. all of the above have the same entropy
1. ammonia (NH3) gas
3 domains of life
1. eukaryoties
2. archaea
3. bacteria
2+3 are called prokaryotes
bacterial cells
are simpler and smaller than eukaryotic cells, they are generally not compartmentalized
they are still quite complex
a eukaryotic cell is highly organized- and compartmentalized. the different
compartments are called organelles: (plant cell)
mitochondrion, chloroplast, nucleus
nucleus
contains chromosomal DNA
mitochondrion
energy generation
chloroplast
photosynthesis
eukaryotic animal cell
, 1. nucleus
2. mitochondrion
3. lysosome
organelles differ in major ways from the cytoplasm
1. protein content
2. DNA & RNA content
3. cofactors
4. pH
(lysosome has a lower pH compared to other organelles)
malaria parasite; a unicellular eukaryote with many highly specialized organelles
miconeme: provides proteins for red blood cell entry
rhoptry: provides proteins for red blood cell entry
* need to know these proteins are essential for host cell invasion by malaria parasite
lipid critical for biomembrane formation
have a polar head and hydrocarbon tail
they spontaneously make membrane bilayer when placed in water
lipids for biological membranes
oligasaccharide: on outer surfaces of membranes
membranes are crucial for surrounding compartments like the cell itself, mitochondrion,
chloroplasts, nuclei, lysosomes
comparmentation
